fixes gh-1769 Added stagever to the release version in the RPM.
fixes gh-1769 Added stagever to the release version in the RPM.

Pre change - Release     : 3.7.0
Post change - Release     : 3.7.01trunk

Signed-off-by: Philip Schwartz <90179e62a462019a8b170b5c04a4f0541ad92702@lexisnexis.com>

afishbeck/HPCC-Platform,afishbeck/HPCC-Platform,afishbeck/HPCC-Platform,afishbeck/HPCC-Platform,afishbeck/HPCC-Platform,afishbeck/HPCC-Platform